fix(node:timers): add missing methods to Timeout polyfill

Author: pi0

src/runtime/node/internal/timers/set-interval.ts

@@ -3,7 +3,7 @@ import { Timeout } from "./timeout.ts";
 export async function* setIntervalFallbackPromises<T = void>(
   delay?: number,
   value?: T,
-): AsyncIterable<T> {
+): NodeJS.AsyncIterator<T> {
   yield value as T;
 }
 

src/runtime/node/internal/timers/timeout.ts

@@ -1,9 +1,17 @@
+import { createNotImplementedError } from "../../../_internal/utils.ts";
+
 export class Timeout<TArgs extends any[]> implements NodeJS.Timeout {
   constructor(callback: TimerHandler, args: TArgs) {
     if (typeof callback === "function") {
       callback(...args);
     }
   }
+  close(): this {
+    throw createNotImplementedError("node.timers.timeout.close");
+  }
+  _onTimeout(...args: any[]): void {
+    throw createNotImplementedError("node.timers.timeout._onTimeout");
+  }
   ref() {
     return this;
   }